Prepare to Drop
-When the level starts as you're sitting in the drop pod, mash the B button. Then hold the board button so that you exit the drop pod the second the drop pod door blows off. You will fall down to the streets, go immediately to the right. While falling, mash the crouch button, but don't mash for so long, because if you're mashing while you hit the ground you will lose a lot of health.
-Throw 2 grenades at the brutes the second you see the first brute start walking away. Pistol remaining grunts.
-Turn around and pistol/nade/smg the grunts and 2 brutes to the left of the first fight area.
-Once you've killed everything, go to the right of the 2nd fight area and look at the phone booth that is the farthest down the line and hold the board button. Keep progressing past the phone booths and go to the closest door, and hold the board button to enter it. Progress through the buildings and past the grunt courtyard until you've completed the level.